2005•Journal of Qingdao University of Science and TechnologyRequires access

Construction and Electrochemical Behaviours of Mercaptoacetic Acid Self-assembled Modified Gold Electrode

Wei Sun

Abstract

A self-assembled modified gold electrode was obtained by modifying with mercaptoacetic acid, based on the strong interaction of -SH with gold surface. The electrochemical behaviors of the self-assembled monolayer (SAM) electrode were preliminarily studied by cyclic voltammetric technique. The results showed that a self-assembled monolayer (SAM) was formed on the surface of gold electrode. \[Fe(CN) 6\] 3-/4-redox couple was used as the electrochemical probe to study the electrochemical characteristics of the self-assembled modified gold electrode and the results showed that the existence of mercaptoacetic acid membrance on gold surface hindered the electron transfer.

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Key concepts: Self-assembled monolayer, Electrochemistry, Electrode, Monolayer, Chemistry, Electron transfer, Redox, Inorganic chemistry